Troy Lee Designs D4 Shadow Poly Full Face Helmet - Black
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Product Information
Full details
The Troy Lee Designs D4 Shadow Poly Full Face Helmet is engineered for gravity-focused mountain bikers and downhill racers who prioritize high-level safety without moving to a full carbon construction. Its standout benefit is the integration of the Mips C2 rotational impact protection system, which offers superior brain protection during angled impacts; however, potential buyers should note that the polyacrylite shell is heavier than its carbon fiber counterparts, which may cause neck fatigue during exceptionally long days in the saddle.
All features
| Age Group | adult |
|---|---|
| Colour | Black |
| Gender | Male |
| Model Part Number | 174499004 |
| Brand | Troy Lee Designs |
Extended Product Information
FAQs
Is this helmet suitable for BMX racing?
Yes, the full-face coverage and impact protection ratings make it suitable for BMX and mountain bike racing.
Does the visor adjust?
The visor is designed to be adjustable to accommodate various riding positions and goggle styles.
Can I replace the internal liners?
Yes, TLD offers replacement comfort liners that can be removed for washing or replacement.
How often should I replace the helmet?
It is recommended to replace any helmet after a significant impact, or every 3-5 years due to material degradation.
Is the Mips system removable?
The Mips C2 system is an integrated part of the safety design and should not be removed by the user.
Troubleshooting
Helmet feels loose or wobbly
Adjust the internal padding thickness or check that the rear fitment system is correctly seated.
Difficulty breathing or restricted airflow
Clear the front intake vents and side Power Grid meshes of any mud or trail debris.
Goggles do not fit properly
Ensure the goggle strap is positioned correctly on the rear recess of the helmet and try adjusting the visor position.
Pros and Cons
Pros
- Advanced Mips C2 impact protection included
- Excellent ventilation system for a full-face helmet
- Durable and impact-resistant polyacrylite construction
- Sleek and professional aesthetic
- Reliable protection for high-speed gravity riding
Cons
- Heavier than the carbon fiber version of the D4
- May feel warm during low-speed climbing
- Limited color variation in the Shadow model
Setup, Compatibility & Care
To ensure proper fit, measure your head circumference above the eyebrows and refer to the manufacturer sizing chart. Always ensure the chin strap is tightened securely before every ride, leaving only enough room to fit two fingers between the strap and your jaw. For care, remove the comfort liner and wash it by hand with mild soap and cold water, allowing it to air dry completely. Do not use chemical solvents or harsh detergents on the outer shell, as these can degrade the structural integrity of the polyacrylite material. Inspect the shell and internal Mips liner after any significant impact, replacing the helmet if any cracks or signs of damage appear.